On that fateful day, Chrono Gaius, the world's strongest Sword Saint, lost everything.

Forced to watch his nemesis, Gilgran, twist his beloved wife and loyal subordinates into hideous, living corpses, Chrono himself met a bitter and agonizing end or so he thought. When he opens his eyes, he discovers he has transmigrated into the body of the incompetent youngest son of the very man who murdered him!

Now trapped in the weakest of vessels, Chrono harbors a forbidden power that allows him to temporarily surpass even his past prime. Hiding his true identity, he must play the part of a loving son while biding his time to strike.

Crawling back from the depths of despair, an overwhelming tale of peerless vengeance begins now!